water injection nozzle locations

tony597fitter

tony597fitter

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I have a Coolingmist H2O kit. It has 2-250psi pumps with 4-625 nozzles, and a progressive controller.

The first stage (2 nozzles) come on at 1050* and the second stage (all 4 nozzles) come on at 1200*.

Right now I have them in the stock intake horn. I am building a new stainless air intake horn and wanted to know if anyone is running their nozzles right into the intake horn PLATE?
Would this be OK, or would it be too much water to one cylinder and put the fire out.

Reason why I am wanting to do this, is I think it would be more of an even distribution, and I also want to clean up the intake horn.

Thanks
 
I think it would even it out.

But, I'd worry about the jet pointing straight down and the water hitting the bottom of the manifold and the drops becoming bigger or it puddling up and all of a sudden smacking the valve at once.
 
one thing i could see is that maybe the airflow in the 'intake' part of the head may cause 'pooling' of the water, especially if your shooting 4 nozzles in there and trying to go down 6 holes.

Best bet would probably be 6 nozzles (if thats not already what you were thinking), one directed at each intake port through the plate.
 
water does not like to stay suspended. The ideal locations would be to put a jet through the head into each runner.
 
GRotman said:
water does not like to stay suspended. The ideal locations would be to put a jet through the head into each runner.
Click to expand...

Thanks Glenn, but Chris is already using up my money.:hehe:

One day I will buy a mill so I can make some cool $hit also.

Keep up the R&D! I love spending money on new parts.
 
didn't Dockboy mount his water injection nozzles(3, I think) to the bottom of the intake?
 
I'm running 3 nozzles spread across the intake manifold, spaced out so that 2 cylinders/ nozzle, and pointed at the bridge between cylinders. One small nozzle post CAC. Toying with 2 more even smaller pre-turbo.

It would be a challenge to get it good with the engine in the truck, but its worth it.

Its sweet pulling egt's down to 1350 or so, from a blistering 1700 - 1800.

Pretty sure if I used the same volume just in the horn I'd hydro lock 3 or 4 (zz fab side entrance)


Nozzle/cylinder best
all in the horn worst....but better than nothing I guess.
 
No pics handy, doing some renovations and the desktops are packed up, but I remember Dockboy's set up, and pretty sure they came up from the bottom of the stock manifold, but don't see why they couldn't go down from the top, and it would be something that could be done with the head in place.

On my zzfab intake the outer nozzles point straight in the side, the middle nozzle points up just at throat of the intake pipe (middle).
 
I have three nozzles going. One in between my secondary turbo and the cooler, one bigger one in my intake manifold, and a smaller one feeding the rear two cylinders from the intake plate.


This is about the best picture I can find right now.

truck005.jpg
 
guess you are gonna find out how good you have that thing sealed up tony

250 psi pump in front of 2 625's (x2) will move some water

i would not be surprised if you see another 7 or 8 psi outta it (using straight h2o)

hope you post the results here


*ps - know whats funny? put that same system on a ford or chevy (same power level as your truck) and it would prolly drown the thing. but on a 12v you can be cruising down the frwy, not even makin 10 psi, bypass the puter and activate the system, and not hardly even know its on. but the same amount of water will snuff a duramut. at wot. lol
 
Last edited:
cbtoyz said:
I have three nozzles going. One in between my secondary turbo and the cooler, one bigger one in my intake manifold, and a smaller one feeding the rear two cylinders from the intake plate.


This is about the best picture I can find right now.

truck005.jpg
Click to expand...

why all the different nozzle locations??
 
Top Secret... :poke:


Just pulling heat out before the intercooler, and the rear two cylinders get the hottest, so I wanted a dedicated nozzle for them.
 
how much of a difference is there running them in the intake horn vs. running them before the intercooler?
 
Honestly, You would probably be better off placing the nozzles as close as you can to the intake runners. Meaning, if all you could do is put them in the intake horn, that would be better than putting it before the CAC. I just wanted to use a small nozzle to take some of the heat out of the charge air, it was damaging my powder coat. It also cools my intake air temps quite a bit. Before I put that nozzle there I my intercooler was so hot on the discharge side I couldn't even touch it. Now it is almost cool to the touch.
 
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